An inter-phase insulation paper for a stator in an electric machine, a stator, an electric machine and a compressor

Abstract

The utility model discloses a kind of for motor stator interphase insulation paper, stator, motor and compressor, interphase insulation paper includes two primary folding parts that inwardly folds along axial center line and is symmetrical to axial center line, the upper portion of two primary folding parts is simultaneously folded outward in axial direction and respectively forms upper end secondary folding part, and the lower portion of axial direction is simultaneously folded outward and respectively forms lower end secondary folding part, interphase insulation paper is used to be inserted in the gap between the adjacent two stator windings in tooth slot from upper to lower along axial direction, the junction of two primary folding parts forms outer edge and is used to abut on the insulation support on stator yoke inner periphery, the inner edge of two primary folding parts is respectively used to be immediately adjacent on the insulation support on corresponding stator end portion, two upper end secondary folding parts are respectively used to be clamped on corresponding stator winding upper surface.The interphase insulation paper can prevent falling off after being inserted in the gap between the adjacent two stator windings in tooth slot.

Description

Technical Field

[0001] This utility model belongs to the field of compressor motor technology, specifically relating to a phase-to-phase insulating paper for the stator in a motor, the stator, the motor, and the compressor. Background Technology

[0002] The compressor is driven by an electric motor. The compressor motor generally includes a stator and a rotor. The stator includes a stator core, an insulating support, and stator windings. The stator core 1 includes an annular stator yoke 101. Multiple stator teeth 102 extend from the inner circumferential surface of the stator yoke 101 towards the rotor. Each pair of adjacent stator teeth 102 is spaced a certain distance apart and forms a tooth groove 104. Each stator tooth 102 has a stator end 103 at the end furthest from the stator yoke 101. (See...) Figure 1 The inner circumferential surface, upper end surface, and lower end surface of the stator yoke 101 are all covered by the insulating bracket 2, and each stator tooth 102 is also covered by the insulating bracket 2. Furthermore, the upper end surface, lower end surface, and surface facing the stator tooth 102 of each stator end 103 are all covered by the insulating bracket 2. Enamelled wire is wound around the outside of the insulating bracket 2 on each stator tooth 102 to form a corresponding stator winding 3. Each stator winding 3 is located in two adjacent slots 104 and is limited by the cooperation of the stator yoke 101 and the corresponding stator end 103. The gap between two adjacent stator windings 3 in each slot 104 is small, which makes it easy to fail during use. Therefore, in order to improve the safety of the motor, it is necessary to set interphase insulating paper in the gap between two adjacent stator windings 3 in each slot 104.

[0003] Existing interphase insulation paper is generally folded inward along the axial centerline 508 to form two symmetrical folded portions 4 relative to the axial centerline 508, and inserted from top to bottom into the gap between two adjacent stator windings 3 in the toothed slot 104, see Figure 2 The connection between the two folded portions 4 forms an outer edge that abuts against the insulating support 2 on the inner circumferential surface of the stator yoke 101. The inner edges of the two folded portions 4 are respectively close to the insulating support 2 on the corresponding stator end 103. Before the varnish is applied for reinforcement, the interphase insulating paper is prone to falling off. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the present invention provides a phase-to-phase insulating paper for the stator of an electric motor, a stator, an electric motor and a compressor, wherein the phase-to-phase insulating paper is inserted into the gap between two adjacent stator windings in the tooth slot to prevent it from falling off.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] An interphase insulating paper for the stator in an electric motor, the electric motor including a stator and a rotor, the stator including a stator core, an insulating support and a stator winding, the stator core including a stator yoke, multiple stator teeth and multiple stator ends, each two adjacent stator teeth being spaced a certain distance apart to form a tooth groove, each stator tooth having an enameled wire wound around the outer side of the insulating support to form a corresponding stator winding, each stator winding being located in two adjacent tooth grooves and being limited by the cooperation of the stator yoke and the corresponding stator ends;

[0007] The interphase insulating paper includes two primary folds folded inward along the axial centerline and symmetrical about the axial centerline. The two primary folds are simultaneously folded outward at the upper part in the axial direction to form upper secondary folds, and simultaneously folded outward at the lower part in the axial direction to form lower secondary folds. The interphase insulating paper is used to be inserted from top to bottom along the axial direction into the gap between two adjacent stator windings in the tooth groove. The connection of the two primary folds forms an outer edge and is used to abut against the insulating support on the inner circumferential surface of the stator yoke. The inner edges of the two primary folds are respectively used to be close to the insulating support on the corresponding stator end. The two upper secondary folds are respectively used to be locked onto the upper surface of the corresponding stator winding.

[0008] Furthermore, the two lower secondary folded portions are respectively used to abut against the lower surface of the corresponding stator winding.

[0009] Furthermore, the two upper corners of the interphase insulating paper are chamfered, so that the angle formed by the intersection of the lower edge and the inner edge of each upper secondary fold is chamfered.

[0010] Furthermore, the two lower corners of the interphase insulating paper are chamfered, so that the angle formed by the intersection of the upper edge and the inner edge of each lower secondary fold is chamfered.

[0011] Furthermore, the upper edge of the interphase insulating paper has an inverted triangular notch in the middle, so that the angle formed by the intersection of the lower edge and the outer edge of each upper secondary fold is chamfered. The lower edge of the interphase insulating paper has an upright triangular notch in the middle, so that the angle formed by the intersection of the upper edge and the outer edge of each lower secondary fold is chamfered.

[0012] Furthermore, a diamond-shaped upper fold opening is provided at the upper part of the phase-to-phase insulating paper. The vertical center line of the upper fold opening coincides with the axial center line of the phase-to-phase insulating paper. The two primary folds are simultaneously folded outward along the horizontal center line of the upper fold opening in the axial direction to form upper secondary folds, so that the angle formed by the intersection of the upper edge and the outer edge of each upper secondary fold is a chamfer.

[0013] Furthermore, a diamond-shaped lower fold opening is provided at the lower part of the phase-to-phase insulating paper. The vertical center line of the lower fold opening coincides with the axial center line of the phase-to-phase insulating paper. The two primary folds are simultaneously folded outward along the horizontal center line of the lower fold opening at the lower part in the axial direction to form secondary folds at the lower end, so that the angle formed by the intersection of the lower edge and the outer edge of each secondary fold is a chamfer.

[0014] A stator with interphase insulation paper includes multiple sheets of the interphase insulation paper used in motor stators as described above, and also includes a stator core, an insulating support, and a stator winding. The stator core includes a stator yoke, multiple stator teeth, and multiple stator ends. Each pair of adjacent stator teeth is spaced a certain distance apart to form a tooth groove. Enamelled wire is wound around the outside of the insulating support on each stator tooth to form a corresponding stator winding. Each stator winding is located in two adjacent tooth grooves and is limited by the cooperation of the stator yoke and the corresponding stator ends.

[0015] The number of sheets of interphase insulation paper is equal to the number of slots. Each sheet of interphase insulation paper is inserted axially from top to bottom into the gap between two adjacent stator windings in the corresponding slot. The connection of the two first folds in each sheet of interphase insulation paper forms an outer edge that abuts against the insulating support on the inner circumferential surface of the stator yoke. The inner edges of the two first folds are respectively adjacent to the insulating support on the corresponding stator end. The two upper secondary folds are respectively locked onto the upper surface of the corresponding stator winding.

[0016] An electric motor includes a stator with interphase insulating paper as described above, and a rotor coaxially disposed with the stator.

[0017] A compressor comprising the motor described above.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] The phase-to-phase insulating paper used in the stator of this utility model includes two primary folds folded inward along the axial centerline and symmetrical about the axial centerline. The two primary folds are simultaneously folded outward at the upper part in the axial direction to form upper secondary folds, and simultaneously folded outward at the lower part in the axial direction to form lower secondary folds. The phase-to-phase insulating paper is inserted from top to bottom along the axial direction into the gap between two adjacent stator windings in the tooth groove. The connection of the two primary folds forms an outer edge and is used to abut against the insulating support on the inner circumferential surface of the stator yoke. The inner edges of the two primary folds are respectively used to be close to the insulating support on the corresponding stator end. The two upper secondary folds are respectively used to be clamped onto the upper surface of the corresponding stator winding. In this way, when the interphase insulation paper is inserted axially from top to bottom into the gap between two adjacent stator windings in the toothed slot, the two upper secondary folds are respectively locked onto the upper surface of the corresponding stator windings. Thus, the interphase insulation paper will not fall off before the varnish is applied for reinforcement. Therefore, the interphase insulation paper can be prevented from falling off after being inserted into the gap between two adjacent stator windings in the toothed slot. Attached Figure Description

[0020] Figure 1 This is a top view of the stator core structure.

[0021] Figure 2 This is a schematic diagram of the main view of the structure after the existing interphase insulating paper in the background art is inserted from top to bottom into the gap between two adjacent stator windings in the tooth groove.

[0022] Figure 3 This is a schematic diagram showing the unfolded state of the interphase insulation paper used in the stator of an electric motor in this utility model;

[0023] Figure 4 This is a schematic diagram of the reverse three-dimensional structure of the phase-to-phase insulating paper in this utility model, which is not folded inward along the axial center line but only folded outward at the top and bottom.

[0024] Figure 5 This is a schematic diagram of the reverse side of the main structure of the phase insulation paper in this utility model, which is not folded inward along the axial center line but only folded outward at the top and bottom.

[0025] Figure 6 This is a top view of the structure after multiple folded phase-to-phase insulating papers of this utility model are inserted axially from top to bottom into the gap between two adjacent stator windings in each slot.

[0026] Figure 7 This is a schematic diagram of the main structure after the phase-to-phase insulating paper of this utility model is inserted axially from top to bottom into the gap between two adjacent stator windings in the tooth groove.

[0027] Explanation of reference numerals in the figure: 1. Stator core; 101. Stator yoke; 102. Stator teeth; 103. Stator end; 104. Tooth groove; 2. Insulating support; 3. Stator winding; 4. Folded section; 5. Interphase insulation paper; 501. First folded section; 502. Upper second folded section; 503. Lower second folded section; 504. Upper notch; 505. Lower notch; 506. Upper folded opening; 507. Lower folded opening; 508. Axial center line. Detailed Implementation

[0028] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate this utility model and are not intended to limit it.

[0029] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] An interphase insulating paper for the stator in an electric motor. The motor includes a stator and a rotor. The stator includes a stator core 1, an insulating support 2, and a stator winding 3. The stator core 1 includes an annular stator yoke 101. Multiple stator teeth 102 extend from the inner circumferential surface of the stator yoke 101 toward the rotor. Each pair of adjacent stator teeth 102 is spaced a certain distance apart and forms a tooth groove 104. Each stator tooth 102 has a stator end 103 at the end away from the stator yoke 101. See [link to relevant documentation]. Figure 1The insulating support 2 covers the inner circumferential surface, upper end surface, and lower end surface of the stator yoke 101, and also covers each stator tooth 102, as well as the upper end surface, lower end surface, and surface facing the stator tooth 102 of each stator end 103. Enamelled wire is wound around the outer side of the insulating support 2 on each stator tooth 102 to form a corresponding stator winding 3. Each stator winding 3 is located within two adjacent tooth slots 104 and is limited by the cooperation of the stator yoke 101 and the corresponding stator end 103. (See...) Figure 6 and Figure 7 ;

[0033] The interphase insulating paper 5 includes two primary fold portions 501 folded inward along the axial centerline 508 and symmetrical relative to the axial centerline 508. The two primary fold portions 501 simultaneously fold outward at their upper axial positions to form upper secondary fold portions 502, and simultaneously fold outward at their lower axial positions to form lower secondary fold portions 503. (See...) Figures 3-5 The interphase insulating paper 5 is inserted axially from top to bottom into the gap between two adjacent stator windings 3 in the toothed slot 104. The connection of the two first-fold portions 501 forms an outer edge and is used to abut against the insulating support 2 on the inner circumferential surface of the stator yoke 101. The inner edges of the two first-fold portions 501 are respectively used to closely abut the insulating support 2 on the corresponding stator end 103. The two upper secondary fold portions 502 are respectively used to be locked onto the upper surface of the corresponding stator winding 3. See Figures 6-7 .

[0034] When the interphase insulation paper 5 is inserted axially from top to bottom into the gap between two adjacent stator windings 3 in the slot 104, the two upper secondary folding parts 502 are respectively locked onto the upper surface of the corresponding stator windings 3. Thus, the interphase insulation paper 5 will not fall off before the varnish is applied for reinforcement. Therefore, the interphase insulation paper 5 can prevent falling off after being inserted into the gap between two adjacent stator windings 3 in the slot 104. The interphase insulation paper 5 can effectively prevent poor contact between two adjacent stator windings 3 in the slot 104, thereby improving the safety of the stator and thus the safety of the motor.

[0035] Among them, the two lower secondary folded portions 503 are respectively used to abut against the lower surface of the corresponding stator windings 3, see Figure 7 .

[0036] In this way, after the interphase insulation paper 5 is inserted into the gap between two adjacent stator windings 3 in the toothed slot 104, the interphase insulation paper 5 can be prevented from falling off during the stator flipping process by the cooperation of the two upper secondary folding parts 502 and the two lower secondary folding parts 503.

[0037] In one embodiment, the upper two corners of the interphase insulating paper 5 are chamfered, see... Figure 3 The angle formed by the intersection of the lower edge and the inner edge of each upper secondary fold 502 is chamfered, see... Figure 4 and Figure 5 The two lower corners of the interphase insulating paper 5 are chamfered, see... Figure 3 The angle formed by the intersection of the upper edge and the inner edge of each lower secondary fold 503 is chamfered, see... Figure 4 and Figure 5 The upper edge of the interphase insulating paper 5 has an inverted triangular notch 504 at the center, as shown in the figure. Figure 3 The angle formed by the intersection of the lower edge and the outer edge of each upper secondary fold 502 is chamfered, see... Figure 4 and Figure 5 The lower edge of the interphase insulating paper 5 has a notch 505 in the shape of an upright triangle, as shown in the figure. Figure 3 The angle formed by the intersection of the upper edge and the outer edge of each lower secondary fold 503 is chamfered, see... Figure 4 and Figure 5 .

[0038] In this way, the phase-to-phase insulating paper 5 has a symmetrical structure. After the phase-to-phase insulating paper 5 is inserted axially from top to bottom into the gap between two adjacent stator windings 3 in the toothed groove 104, the two upper secondary folding parts 502 are respectively locked onto the upper surface of the corresponding stator winding 3, and the two lower secondary folding parts 503 respectively abut against the lower surface of the corresponding stator winding 3. Since the angle formed by the lower edge of each upper secondary folding part 502 intersecting with the inner edge and the outer edge is chamfered, the two upper secondary folding parts 502 will not scratch the upper surface of the corresponding stator winding 3. Similarly, since the angle formed by the upper edge of each lower secondary folding part 503 intersecting with the inner edge and the outer edge is chamfered, the two lower secondary folding parts 503 will not scratch the lower surface of the corresponding stator winding 3.

[0039] In one embodiment, a diamond-shaped upper fold opening 506 is provided at the upper part of the interphase insulating paper 5, and the vertical center line of the upper fold opening 506 coincides with the axial center line 508 of the interphase insulating paper 5. Figure 3 The two first-fold portions 501 simultaneously fold outward along the horizontal centerline of the upper fold opening 506 in the axial direction, forming upper second-fold portions 502 respectively. The angle formed by the intersection of the upper edge and the outer edge of each upper second-fold portion 502 is chamfered. (See...) Figure 4 and Figure 5 .

[0040] By setting the upper fold opening 506, when the two primary folds 501 fold outwards simultaneously in the upper part of the axial direction, the horizontal center line of the upper fold opening 506 can be used as the reference line for folding outwards. This ensures that the two upper secondary folds 502 formed are symmetrically distributed relative to the axial center line 508 of the phase-to-phase insulating paper 5, thereby ensuring that the two upper secondary folds 502 are firmly locked on the upper surface of the corresponding stator winding 3.

[0041] Among them, a diamond-shaped lower fold opening 507 is provided at the lower part of the phase-to-phase insulating paper 5. The vertical center line of the lower fold opening 507 coincides with the axial center line 508 of the phase-to-phase insulating paper 5. Figure 3 The two initial folds 501 fold outwards simultaneously along the horizontal centerline of the lower fold opening 507 at their lower axial direction, forming secondary folds 503 at the lower end. The angle formed by the intersection of the lower edge and the outer edge of each secondary fold 503 is chamfered. (See...) Figure 4 and Figure 5 .

[0042] By setting the lower fold opening 507, when the two primary folds 501 fold outwards simultaneously in the lower part of the axial direction, the horizontal center line of the lower fold opening 507 can be used as the reference line for outward folding. This ensures that the two lower secondary folds 503 formed are symmetrically distributed relative to the axial center line 508 of the phase-to-phase insulating paper 5, thereby ensuring that the two lower secondary folds 503 firmly abut against the lower surface of the corresponding stator winding 3.

[0043] like Figure 6 and Figure 7 As shown, a stator with interphase insulation paper includes multiple sheets of the interphase insulation paper used in motor stators, as well as a stator core 1, an insulating support 2, and a stator winding 3. The stator core 1 includes a stator yoke 101, multiple stator teeth 102, and multiple stator ends 103. Each pair of adjacent stator teeth 102 is spaced a certain distance apart and forms a tooth groove 104. The outer side of the insulating support 2 on each stator tooth 102 is wound with enameled wire to form a corresponding stator winding 3. Each stator winding 3 is located in two adjacent tooth grooves 104 and is limited by the cooperation of the stator yoke 101 and the corresponding stator ends 103.

[0044] The number of sheets of interphase insulating paper 5 is equal to the number of slots 104. Each sheet of interphase insulating paper 5 is inserted axially from top to bottom into the gap between two adjacent stator windings 3 in the corresponding slot 104. The connection of the two first folded portions 501 in each sheet of interphase insulating paper 5 forms the outer edge and abuts against the insulating support 2 on the inner circumferential surface of the stator yoke 101. The inner edges of the two first folded portions 501 are respectively close to the insulating support 2 on the corresponding stator end 103. The two upper secondary folded portions 502 are respectively locked on the upper surface of the corresponding stator winding 3.

[0045] An electric motor includes a stator with interphase insulating paper as described above, and a rotor coaxially disposed with respect to the stator.

[0046] A compressor comprising the aforementioned motor.

[0047] In summary, the interphase insulation paper used in the stator of the motor in this utility model, through a first folding and a second flipping process, can be firmly inserted into the gap between two adjacent stator windings 3 in the tooth slot 104 without falling off.

[0048] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A phase-to-phase insulating paper for a stator in an electric motor, the electric motor comprising a stator and a rotor, the stator comprising a stator core (1), an insulating support (2), and a stator winding (3), the stator core (1) comprising a stator yoke (101), a plurality of stator teeth (102), and a plurality of stator ends (103), each pair of adjacent stator teeth (102) being spaced apart by a certain distance and forming a tooth groove (104), and the insulating support (2) on each stator tooth (102) having enameled wire wound around its outer side to form a corresponding stator winding (3); characterized in that: The interphase insulating paper (5) includes two first folded portions (501) folded inward along the axial center line (508) and symmetrical about the axial center line (508). The two first folded portions (501) are folded outward at the upper part in the axial direction to form upper second folded portions (502) respectively, and folded outward at the lower part in the axial direction to form lower second folded portions (503) respectively. The interphase insulating paper (5) is used to be inserted from top to bottom in the axial direction into the gap between two adjacent stator windings (3) in the tooth groove (104). The connection of the two first folded portions (501) forms an outer edge and is used to abut against the insulating support (2) on the inner circumferential surface of the stator yoke (101). The inner edges of the two first folded portions (501) are respectively used to be close to the insulating support (2) on the corresponding stator end (103). The two upper second folded portions (502) are respectively used to be clamped on the upper surface of the corresponding stator winding (3).

2. The phase-to-phase insulating paper for the stator in an electric motor according to claim 1, characterized in that: The two lower secondary folds (503) are respectively used to abut against the lower surface of the corresponding stator winding (3).

3. The phase-to-phase insulating paper for the stator in an electric motor according to claim 2, characterized in that: The upper two corners of the interphase insulating paper (5) are chamfered, so that the corner formed by the intersection of the lower edge and the inner edge of each upper secondary fold (502) is chamfered.

4. The phase-to-phase insulating paper for the stator in an electric motor according to claim 3, characterized in that: The two lower corners of the interphase insulating paper (5) are chamfered, so that the angle formed by the intersection of the upper edge and the inner edge of each lower secondary fold (503) is chamfered.

5. The phase-to-phase insulating paper for the stator in an electric motor according to claim 4, characterized in that: The upper edge of the interphase insulating paper (5) has an inverted triangular notch (504) in the middle, so that the angle formed by the intersection of the lower edge and the outer edge of each upper secondary fold (502) is chamfered. The lower edge of the interphase insulating paper (5) has an upright triangular notch (505) in the middle, so that the angle formed by the intersection of the upper edge and the outer edge of each lower secondary fold (503) is chamfered.

6. The phase-to-phase insulating paper for the stator in an electric motor according to claim 2, characterized in that: The upper part of the interphase insulating paper (5) has a diamond-shaped upper fold opening (506). The vertical center line of the upper fold opening (506) coincides with the axial center line (508) of the interphase insulating paper (5). The two primary folds (501) are folded outward simultaneously along the horizontal center line of the upper fold opening (506) in the axial direction to form upper secondary folds (502) respectively. The angle formed by the intersection of the upper edge and the outer edge of each upper secondary fold (502) is a chamfer.

7. The phase-to-phase insulating paper for the stator in an electric motor according to claim 6, characterized in that: The lower part of the interphase insulating paper (5) has a diamond-shaped lower fold opening (507). The vertical center line of the lower fold opening (507) coincides with the axial center line (508) of the interphase insulating paper (5). The two primary folds (501) are folded outward along the horizontal center line of the lower fold opening (507) at the lower part in the axial direction and form a secondary fold at the lower end (503) respectively. The angle formed by the intersection of the lower edge and the outer edge of each secondary fold at the lower end (503) is a chamfer.

8. A stator with interphase insulating paper, characterized in that: The device includes multiple sheets of interphase insulating paper for the stator in an electric motor as described in any one of claims 1-7, and also includes a stator core (1), an insulating support (2), and a stator winding (3). The stator core (1) includes a stator yoke (101), multiple stator teeth (102), and multiple stator ends (103). Each pair of adjacent stator teeth (102) is spaced a certain distance apart and forms a tooth groove (104). The insulating support (2) on each stator tooth (102) is wrapped with enameled wire on the outside to form a corresponding stator winding (3). The number of sheets of interphase insulating paper (5) is equal to the number of slots (104). Each sheet of interphase insulating paper (5) is inserted axially from top to bottom into the gap between two adjacent stator windings (3) in the corresponding slot (104). The connection of the two first folds (501) in each sheet of interphase insulating paper (5) forms an outer edge and abuts against the insulating support (2) on the inner circumferential surface of the stator yoke (101). The inner edges of the two first folds (501) are respectively close to the insulating support (2) on the corresponding stator end (103). The two upper secondary folds (502) are respectively locked on the upper surface of the corresponding stator winding (3).

9. An electric motor, characterized in that: The stator, which includes the phase-to-phase insulating paper as described in claim 8, also includes a rotor, which is coaxially arranged with the stator.

10. A compressor, characterized in that: Includes the motor as described in claim 9.

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